Diablo 2 is probably the best ARPG ever made. It's about your character setting out to kill Diablo (Who is either a demon or a devil, I'm not sure which). You get to kill his brothers, too. It involves fighting, fighting and even more fighting, basically. But it's the gameplay that makes it awesome.
If the idea of massacring hordes of demons & undead doesn't appeal, then you won't like Diablo 2.
